1. Computer
Joseph Z. Rizon
1sm

2. What is Computer?

3. A computer is an
electronic device,
operating under the
control of
instructions stored in
own memory, that
can accept data,
process the data
according to
specified rules,
produce results, and
store the result for
future use.

4. DATA – a collection of unprocessed items,
which can include text, numbers, images,
audio, and video
INFORMATION – conveys meaning and is
useful to people
INFORMATION PROCESSING CYCLE
data
(input)
process
information
(output)
storage

5. Components COMPUTER

6. Input Devices
 any hardware component that allows you to
enter data and instructions into a computer
1. Keyboard
2. Mouse
3. Microphone
4. Scanner
5. Digital camera
6. PC video camera

7. Keyboard
 contains
keys you
press to
enter data
into the
computer

8. Mouse
 small handheld device
 use to controls movements of the
pointer
 use to make selections in the
screen

9. Microphone
 allows someone to speak into
the computer

10. Scanner
 converts
printed
materials
(text &
pictures) into
a form the
computer can
use

11. Digital Camera
 enables you take pictures and then
transfer them to the computer or
printer instead of storing the
images on traditional films

12. PC video camera
 is a digital
video camera
that allows
you to create
movies or take
still pictures
electronically